package com.txby.platformApi.component.interceptor;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.springframework.core.env.Environment;

/**
 * XSS过滤
 */
public class XssFilter implements Filter {
	private Environment env;
	
	
	public XssFilter(){};
	public XssFilter(Environment env){this.env=env;};
	@Override
	public void init(FilterConfig config) throws ServletException {
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
		String excludeXssUrl=env.getProperty("excludeXssUrl");
		XssHttpServletRequestWrapper xssRequest = new XssHttpServletRequestWrapper(
				(HttpServletRequest) request,excludeXssUrl);
		chain.doFilter(xssRequest, response);
	}

	@Override
	public void destroy() {
	}

}